/Engine/Plugins/Runtime/RigVM/Source/RigVMDeveloper/Public/RigVMModel/RigVMControllerActions.h
A tuple access to sub actions, merge functionality as well as undo and redo base implementations.
[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)() struct FRigVMActionNodeContent
FString
New
FString
Old